Never order ice in your drink on a flight. According to a flight attendant, the ice trays are rarely washed. Flight attendants don't always wash their hands in between handling the drinks, the cans, the cart, the tablet to charge you for the drink, etc.
Imagine their unwashed hands handling your ice. Another tip-bring an antibacterial cloth on the plane to wipe down the tray. Who knows the last time that was done. Did you know you can bring your own mini alcohol bottles on the flight? Yes, you can! But there is one catch-you have to give your bottle to the flight attendant to dispense back to you.
Are you a flight attendant and can confirm this story?